/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg:        #08090c;
  --bg-2:      #0e1015;
  --bg-card:   #13151b;
  --bg-card-2: #181b22;
  --ink:       #f5f6f8;
  --ink-soft:  #c7cbd4;
  --mute:      #8a8f9c;
  --line:      rgba(245, 246, 248, 0.1);
  --line-soft: rgba(245, 246, 248, 0.06);

  --accent:    #1fe0ff;
  --accent-ink:#03181c;

  --gradient-1: #1fe0ff;
  --gradient-2: #7c3aed;
  --gradient-3: #0047ff;

  --display: "Space Grotesk", "Inter", -apple-system, sans-serif;
  --sans:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:    "JetBrains Mono", "SFMono-Regular", Menlo, monospace;

  --gutter: 1.25rem;
  --radius: 16px;
  --radius-sm: 10px;

  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  text-wrap: balance;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media (hover: hover) and (pointer: fine) { .has-cursor, .has-cursor a, .has-cursor button { cursor: none; } }

/* =============================================================
   3. Utilities
   ============================================================= */
.container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--ink); color: var(--bg);
  z-index: 9999; border-radius: 8px; font-weight: 600;
  transition: top .25s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 0.9rem;
}
.kicker {
  font-family: var(--mono);
  font-size: clamp(0.75rem, 1.6vw, 0.88rem);
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
}

/* =============================================================
   4. Cursor
   ============================================================= */
.cursor {
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9999;
  display: none;
  mix-blend-mode: difference;
  opacity: 0;
  transition: opacity .25s var(--ease-out);
}
.cursor.is-ready { opacity: 1; }
@media (hover: hover) and (pointer: fine) { .cursor { display: block; } }
.cursor-dot, .cursor-ring { position: fixed; top: 0; left: 0; pointer-events: none; will-change: transform; }
.cursor-dot { width: 6px; height: 6px; margin: -3px; background: var(--ink); border-radius: 50%; }
.cursor-ring {
  width: 34px; height: 34px; margin: -17px; border: 1px solid var(--ink); border-radius: 50%;
  transition: width .35s var(--ease-out), height .35s var(--ease-out), margin .35s var(--ease-out);
}
.cursor.is-interactive .cursor-ring { width: 52px; height: 52px; margin: -26px; }

/* =============================================================
   5. Buttons
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.7rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(0,0,0,0.2);
  transition: transform .45s var(--ease-soft), box-shadow .45s var(--ease-soft), background .3s var(--ease-out);
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 44px -12px rgba(31, 224, 255, 0.45);
}
.btn-ghost {
  border: 1px solid var(--line);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }
.btn:active { transform: translateY(-1px); transition-duration: .12s; }

.has-magnetic { display: inline-flex; position: relative; isolation: isolate; }
.magnetic-inner {
  display: inline-flex; align-items: center; justify-content: center; gap: inherit;
  will-change: transform;
  transition: transform .8s var(--ease-soft);
}

/* =============================================================
   6. Nav
   ============================================================= */
.nav {
  position: fixed; top: 0; inset-inline: 0; z-index: 100;
  transition: background-color .4s var(--ease-out), backdrop-filter .4s var(--ease-out), border-color .4s var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(8, 9, 12, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-color: var(--line-soft);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
  gap: 1rem;
}
.nav-logo { display: flex; align-items: center; gap: 0.6rem; }
.nav-logo-mark {
  display: grid; place-items: center;
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(31, 224, 255, 0.12);
  color: var(--accent);
  font-size: 1.1rem;
}
.nav-logo-text { font-family: var(--display); font-weight: 600; font-size: 0.95rem; line-height: 1.15; }
.nav-logo-text small { display: block; font-family: var(--mono); font-weight: 400; font-size: 0.65rem; color: var(--mute); letter-spacing: 0.04em; }

.nav-links { display: none; gap: 2rem; font-size: 0.92rem; color: var(--ink-soft); }
@media (min-width: 960px) { .nav-links { display: flex; } }

.nav-link { position: relative; padding: 0.25rem 0; }
.nav-link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -3px;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease-soft);
}
.nav-link:hover { color: var(--ink); }
.nav-link:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-cta { display: inline-flex; padding: 0.65rem 1rem; font-size: 0.82rem; flex-shrink: 0; }
@media (min-width: 640px) { .nav-cta { padding: 0.7rem 1.35rem; font-size: 0.88rem; } }

/* =============================================================
   7. Hero
   ============================================================= */
.hero {
  position: relative;
  overflow: clip;
  padding-block: 9rem 5rem;
  isolation: isolate;
  min-height: 92vh;
  min-height: 92svh;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute; inset: 0; z-index: -3;
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 68% 55%;
  display: block;
}
.hero-bg-tint {
  position: absolute; inset: 0; z-index: -2;
  background:
    linear-gradient(100deg, rgba(8, 9, 12, 0.96) 0%, rgba(8, 9, 12, 0.86) 32%, rgba(8, 9, 12, 0.5) 58%, rgba(8, 9, 12, 0.18) 82%, rgba(8, 9, 12, 0.05) 100%),
    linear-gradient(to top, rgba(8, 9, 12, 0.85) 0%, rgba(8, 9, 12, 0.1) 45%, transparent 65%);
}
.hero-gradient {
  position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(circle 640px at var(--mx, 30%) var(--my, 30%), var(--gradient-1) 0%, transparent 55%),
    radial-gradient(circle 720px at calc(var(--mx, 30%) + 20%) calc(var(--my, 30%) + 30%), var(--gradient-2) 0%, transparent 55%),
    radial-gradient(circle 620px at calc(var(--mx, 30%) - 10%) calc(var(--my, 30%) + 45%), var(--gradient-3) 0%, transparent 55%),
    var(--bg);
  filter: blur(70px) saturate(160%);
  opacity: 0.5;
}
.hero-gradient--cta { opacity: 0.32; }

.hero-circuit {
  position: absolute; inset: 0; z-index: -1;
  opacity: 0.35;
  pointer-events: none;
}
.circuit-path {
  fill: none;
  stroke-dasharray: 12 10;
  animation: circuitFlow 14s linear infinite;
}
.circuit-path--b { animation-duration: 18s; animation-direction: reverse; }
@keyframes circuitFlow { to { stroke-dashoffset: -440; } }
.circuit-dot {
  filter: drop-shadow(0 0 6px var(--accent));
  animation: circuitPulse 2.4s ease-in-out infinite;
}
.circuit-dot--b { animation-delay: 1.1s; }
@keyframes circuitPulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .circuit-path, .circuit-dot { animation: none; }
}

.hero-inner { max-width: 640px; }
.hero-title {
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  max-width: 16ch;
}
.hero-title-accent {
  background: linear-gradient(100deg, var(--accent), #8fb8ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin-top: 1.5rem;
  max-width: 52ch;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
}
.hero-actions {
  margin-top: 2.25rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats { margin-top: 3.5rem; }
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 480px;
}
.stat-item { border-top: 1px solid var(--line); padding-top: 0.85rem; }
.stat-value {
  display: block;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.6rem, 3.2vw, 2.1rem);
  color: var(--ink);
}
.stat-value .stat-suffix { color: var(--accent); }
.stat-label { display: block; margin-top: 0.3rem; font-size: 0.78rem; color: var(--mute); max-width: 14ch; }

/* =============================================================
   8. Sections generic
   ============================================================= */
.section { padding-block: 5.5rem; position: relative; }
.section-alt { background: var(--bg-2); }
.section-title {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  max-width: 20ch;
}
.section-lead {
  margin-top: 1rem;
  max-width: 58ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

/* =============================================================
   9. Services grid
   ============================================================= */
.services-grid {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px)  { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }

.service-card {
  position: relative;
  isolation: isolate;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.9rem 1.7rem;
  transition: transform .4s var(--ease-soft), border-color .4s var(--ease-soft), background .4s var(--ease-soft);
}
.service-card::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(31,224,255,.16), transparent 65%);
  opacity: 0; transition: opacity .35s;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(31, 224, 255, 0.35);
  background: var(--bg-card-2);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  display: grid; place-items: center;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: rgba(31, 224, 255, 0.1);
  color: var(--accent);
  margin-bottom: 1.4rem;
}
.service-icon svg { width: 22px; height: 22px; }
.service-card h3 { font-size: 1.15rem; margin-bottom: 0.55rem; }
.service-card p { color: var(--mute); font-size: 0.94rem; }

/* =============================================================
   10. About / pillars
   ============================================================= */
.about-inner {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 900px) {
  .about-inner { grid-template-columns: 1fr 1fr; align-items: start; gap: 3.5rem; }
}
.about-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  margin-bottom: 1.75rem;
}
.about-lead {
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  font-family: var(--display);
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.pillars { display: grid; gap: 1.75rem; }
.pillar { display: flex; gap: 1.25rem; border-top: 1px solid var(--line); padding-top: 1.25rem; }
.pillar-num { font-family: var(--mono); color: var(--accent); font-size: 0.85rem; flex-shrink: 0; padding-top: 0.2rem; }
.pillar h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.pillar p { color: var(--mute); font-size: 0.94rem; }

/* =============================================================
   11. Process
   ============================================================= */
.process-grid {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .process-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1180px) { .process-grid { grid-template-columns: repeat(4, 1fr); } }
.process-step {
  border-top: 2px solid var(--line);
  padding-top: 1.4rem;
  transition: border-color .4s var(--ease-soft);
}
.process-step:hover { border-color: var(--accent); }
.process-num { font-family: var(--mono); color: var(--accent); font-size: 0.85rem; }
.process-step h3 { margin-top: 0.6rem; font-size: 1.1rem; }
.process-step p { margin-top: 0.4rem; color: var(--mute); font-size: 0.92rem; }

/* =============================================================
   12. Work gallery (photos + placeholder fallback)
   ============================================================= */
.work-grid {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 540px) { .work-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .work-grid { grid-template-columns: repeat(3, 1fr); } }
.work-item {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  border: 1.5px dashed var(--line);
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.025) 0 10px, transparent 10px 20px),
    var(--bg-card);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  position: relative;
  overflow: hidden;
  transition: border-color .4s var(--ease-soft);
  margin: 0;
}
.work-item:hover { border-color: rgba(31, 224, 255, 0.4); }
.work-item::before {
  content: "⚡"; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -60%);
  font-size: 1.6rem; opacity: 0.18;
}
.work-item span {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--mute);
  background: rgba(8,9,12,0.6);
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
}

.work-item--photo {
  border: 1px solid var(--line);
  padding: 0;
  align-items: stretch;
}
.work-item--photo img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .8s var(--ease-soft), filter .55s;
}
.work-item--photo::before { content: none; }
.work-item--photo::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(8,9,12,0.88) 0%, rgba(8,9,12,0.15) 45%, transparent 65%);
  pointer-events: none;
}
.work-item--photo:hover { border-color: rgba(31, 224, 255, 0.45); }
.work-item--photo:hover img { transform: scale(1.08); filter: saturate(1.12) brightness(1.03); }
.work-item--photo figcaption {
  position: relative; z-index: 1;
  width: 100%;
  padding: 1rem;
  display: flex;
  align-items: flex-end;
}
.work-item--photo figcaption span {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink);
  background: rgba(8,9,12,0.55);
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
}

/* =============================================================
   13. Testimonials
   ============================================================= */
.testimonials-grid {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .testimonials-grid { grid-template-columns: repeat(2, 1fr); } }
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.9rem;
}
.testimonial-quote {
  font-size: 1.02rem;
  color: var(--ink-soft);
  line-height: 1.6;
}
.testimonial-quote::before { content: "\201C"; color: var(--accent); }
.testimonial-quote::after { content: "\201D"; color: var(--accent); }
.testimonial-who {
  margin-top: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.testimonial-avatar {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(31, 224, 255, 0.14);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  flex-shrink: 0;
}
.testimonial-name { font-size: 0.92rem; font-weight: 600; }
.testimonial-role { font-size: 0.8rem; color: var(--mute); }

/* =============================================================
   14. Contact
   ============================================================= */
.section-cta { overflow: clip; isolation: isolate; }
.contact-inner {
  position: relative;
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 960px) {
  .contact-inner { grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
}
.contact-phone {
  display: inline-block;
  margin-top: 1.75rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  position: relative;
}
.contact-phone::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px;
  height: 2px; background: var(--accent);
  transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease-soft);
}
.contact-phone:hover::after { transform: scaleX(1); transform-origin: left; }

.contact-meta { list-style: none; margin-top: 2rem; display: grid; gap: 0.9rem; }
.contact-meta li {
  display: flex; justify-content: space-between; gap: 1rem;
  border-top: 1px solid var(--line); padding-top: 0.7rem;
  font-size: 0.92rem;
}
.contact-meta li span:first-child { color: var(--mute); font-family: var(--mono); font-size: 0.78rem; }
.contact-meta li a:hover { color: var(--accent); }

.cta-form {
  position: relative;
  display: grid;
  gap: 1.1rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  transition: opacity .55s var(--ease-out), transform .55s var(--ease-soft);
}
.cta-form.is-sent { opacity: 0; transform: translateY(-12px); pointer-events: none; }

.field { position: relative; }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 1.3rem 1rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.02);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  transition: border-color .3s;
}
.field textarea { resize: vertical; min-height: 90px; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--accent); outline: none; }
.field label {
  position: absolute; left: 1rem; top: 50%; transform: translateY(-50%);
  pointer-events: none; transition: all .25s var(--ease-out);
  color: var(--mute); font-size: 0.95rem;
}
.field input:focus + label,
.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,
.field textarea:not(:placeholder-shown) + label {
  top: 0.85rem; transform: none; font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent);
}
.field-select select { color: var(--mute); }
.field-select select:valid { color: var(--ink); }

.cta-submit { position: relative; margin-top: 0.25rem; }
.cta-form-spinner, .cta-form-check {
  position: absolute; inset: 0; display: grid; place-items: center;
  opacity: 0; pointer-events: none;
}
.cta-form.is-sending .cta-form-label { opacity: 0; }
.cta-form.is-sending .cta-form-spinner { opacity: 1; }
.cta-form-spinner::after {
  content: ""; width: 18px; height: 18px;
  border: 1.5px solid rgba(3,24,28,0.3); border-top-color: var(--accent-ink);
  border-radius: 50%; animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.cta-form-check path {
  stroke: currentColor; stroke-width: 2; fill: none;
  stroke-dasharray: 1; stroke-dashoffset: 1;
  transition: stroke-dashoffset .55s var(--ease-out);
}

.cta-success {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -40%);
  opacity: 0; pointer-events: none;
  text-align: center;
  transition: opacity .8s var(--ease-out) .25s, transform .9s var(--ease-soft) .25s;
}
.cta-success.is-visible { opacity: 1; transform: translate(-50%, -50%); pointer-events: auto; }
.cta-success h3 { font-size: 1.5rem; margin-bottom: 0.6rem; }
.cta-success p { color: var(--ink-soft); max-width: 34ch; }

/* =============================================================
   15. Footer
   ============================================================= */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2.5rem;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}
@media (min-width: 900px) {
  .footer-inner { flex-direction: row; align-items: center; justify-content: space-between; }
}
.footer-logo { opacity: 0.9; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.25rem; font-size: 0.88rem; color: var(--ink-soft); }
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-size: 0.82rem; color: var(--mute); }

/* =============================================================
   16. Reveal-on-scroll
   ============================================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .75s var(--ease-out), transform .75s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* =============================================================
   17. Chat widget
   ============================================================= */
.chat-toggle {
  position: fixed;
  right: 1.25rem; bottom: 1.25rem;
  z-index: 500;
  width: 58px; height: 58px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 16px 40px -12px rgba(31, 224, 255, 0.55), 0 6px 16px rgba(0,0,0,0.35);
  transition: transform .35s var(--ease-soft);
}
.chat-toggle:hover { transform: translateY(-3px) scale(1.04); }
.chat-toggle-icon { width: 24px; height: 24px; position: absolute; transition: opacity .25s, transform .25s; }
.chat-toggle-icon--close { opacity: 0; transform: rotate(-45deg) scale(0.6); }
.chat-toggle-icon--open { opacity: 1; transform: none; }
.chat-widget.is-open .chat-toggle-icon--open { opacity: 0; transform: rotate(45deg) scale(0.6); }
.chat-widget.is-open .chat-toggle-icon--close { opacity: 1; transform: none; }

.chat-panel {
  position: fixed;
  right: 1.25rem; bottom: 5.25rem;
  z-index: 500;
  width: min(380px, calc(100vw - 2.5rem));
  height: min(560px, calc(100vh - 8rem));
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 40px 90px -25px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px) scale(0.98);
  pointer-events: none;
  transition: opacity .3s var(--ease-out), transform .35s var(--ease-soft);
}
.chat-widget.is-open .chat-panel { opacity: 1; transform: none; pointer-events: auto; }

.chat-panel-header {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: var(--bg-card-2);
}
.chat-panel-title { font-family: var(--display); font-weight: 600; font-size: 0.98rem; }
.chat-panel-sub { font-size: 0.78rem; color: var(--mute); margin-top: 0.15rem; }

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.1rem 1.1rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.chat-msg { display: flex; }
.chat-msg--user { justify-content: flex-end; }
.chat-msg--model { justify-content: flex-start; }
.chat-bubble {
  max-width: 84%;
  padding: 0.65rem 0.9rem;
  border-radius: 14px;
  font-size: 0.9rem;
  line-height: 1.5;
}
.chat-msg--user .chat-bubble { background: var(--accent); color: var(--accent-ink); border-bottom-right-radius: 4px; }
.chat-msg--model .chat-bubble { background: var(--bg-card-2); color: var(--ink-soft); border: 1px solid var(--line); border-bottom-left-radius: 4px; }

.chat-typing { display: flex; gap: 4px; align-items: center; padding: 0.85rem 1rem; }
.chat-typing span {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--mute);
  animation: chatTypingBounce 1.2s ease-in-out infinite;
}
.chat-typing span:nth-child(2) { animation-delay: .15s; }
.chat-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes chatTypingBounce {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}
@media (prefers-reduced-motion: reduce) {
  .chat-typing span { animation: none; opacity: 0.7; }
}

.chat-form {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  padding: 0.85rem 1.1rem;
  border-top: 1px solid var(--line);
}
.chat-input {
  flex: 1;
  resize: none;
  max-height: 120px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  color: var(--ink);
  font: inherit;
  font-size: 0.9rem;
  line-height: 1.4;
}
.chat-input:focus { outline: none; border-color: var(--accent); }
.chat-send {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent);
  color: var(--accent-ink);
  transition: transform .25s var(--ease-soft), opacity .25s;
}
.chat-send:hover { transform: translateY(-2px); }
.chat-send:disabled { opacity: 0.5; }
.chat-send svg { width: 18px; height: 18px; }

.chat-disclaimer {
  font-size: 0.7rem;
  color: var(--mute);
  padding: 0 1.1rem 0.9rem;
  line-height: 1.4;
}
.chat-disclaimer a { color: var(--accent); text-decoration: underline; }

@media (max-width: 480px) {
  .chat-panel {
    right: 0.75rem; left: 0.75rem;
    width: auto;
    bottom: 5rem;
    height: min(72vh, 560px);
  }
  .chat-toggle { right: 1rem; bottom: 1rem; }
}